Live Breaking News & Updates on ஹிரோஷி அமனோ

Stay updated with breaking news from ஹிரோஷி அமனோ. Get real-time updates on events, politics, business, and more. Visit us for reliable news and exclusive interviews.

Isamu Akasaki, Nobel-prizewinning inventor of the blue LED – obituary


Isamu Akasaki
Credit: TORU YAMANAKA/AFP
Isamu Akasaki, who has died aged 92, shared the 2014 Nobel Prize in physics, with Hiroshi Amano and Shuji Nakamura, for their invention of blue light-emitting diodes (LEDs), an energy-efficient technology now used in everything from light bulbs to televisions, computer screens, smartphones and Christmas tree lights.
In an LED, light is produced when negative electrons combine with positive “holes” in thin layers of semiconductors. Red LEDs became available in the 1960s and were widely used in calculators and digital watches. Green LEDs were developed around the same time. But for many years scientists struggled to create blue LEDs – the only ones capable of being used to produce white light. ....

United States , Thomas Edison , Hiroshi Amano , George Craford , Nick Holonyak , Oleg Losev , Shuji Nakamura , Isamu Akasaki , Russell Dupuis , Kobe Kogyo Corporation , Matsushita Research Institute Tokyo , Research Centre For Nitride Semiconductor Core Technologies , Kyoto University , Royal Swedish Academy Of Sciences , University Of Illinois , Nagoya University , Nagoya University Akasaki Institute , Meijo University , Royal Swedish Academy , Elizabeth Prize , Nagoya University Akasaki , Research Centre , Nitride Semiconductor Core , Japanese Emperor , Science Obituaries , Nobel Prize ,